Remember this is more of a concept than anything else. The build revolves around the skill serenity with the ascension rune which gives invulnerability to damage and movement impairments. The item choices allow for about 98% up-time of the skill. The other two percent are addressed with inner sanctuary and epiphany. Implosion is used to group monsters together (+30% damage buff from strongarms) and crippling wave is used for it's aoe freeze. Two weapons are used in conjunction with the Goguk of Swiftness legendary gem and the alacrity passive to ensure both spirit regeneration and freeze procs off of crippling wave. (additionally, Goguk of Swiftness will provide an additional 15% cooldown reduction at rank 25)

Extra spirit generated will be used to spam the time of need mantra which provides a shield for both you and your allies. (This can be further combined with the sunwuko shoulders, amulet, and gloves to also get the holy proc and slightly different itemization)
I left a lot of room for build variations so feel free to customized it to your own needs. And hopefully, this was at least slightly insightful. - Newsn31